Boost your machine's versatility with an ER20 Water Cooled Spindle. The ER20 collet system supports a broad range of tool shank diameters (up to 13mm), making it suitable for both detailed work and more aggressive cutting. The er20 water cooling spindle ensures thermal stability across all applications, from fine engraving to heavy routing.
■ Product Description
■ Technical Parameters
| Model | STZ100-3.7Z-ER20 |
| Power | 3.7kW |
| Voltage | 380V |
| Current | 7.0A |
| Poles | 2 |
| Torque | 1.59Nm |
| Speed | 24000rpm |
| Frequency | 400Hz |
| Cooling | Water |
| Tool interface | ER20 |
■ Product Advantages
Excellent Cutting Rigidity
The tapered tool holder interface makes close contact with the spindle face, providing extremely high radial and axial rigidity. This effectively suppresses tool vibration and axial displacement during medium-to-high-load cutting, which is crucial for guaranteeing machining accuracy and surface finish.
Robust Sustained Cutting Power (3.7kW)
The power is ample, capable of driving larger diameter tools and supporting higher feed rates and cutting depths, significantly increasing the machining efficiency for medium-hardness materials (like wood, acrylic, and aluminum).
Extremely Low Operating Noise and Temperature Control
The water circulation cooling system completely eliminates fan noise and efficiently controls the spindle temperature, ensuring extremely high thermal stability during long periods of continuous, high-load operation, thus extending bearing life.
High Structural Reliability
The tapered interface design is more robust and durable than collet-style spindles, and the water cooling system effectively isolates internal contamination from the external environment, enhancing the spindle's overall reliability and service life.
■ Application Scenarios
Precision Woodworking and 3D Shaping
Performing deep routing and complex curve finishing on materials like solid wood, thick MDF, and artificial wood, requiring extremely high precision after tool change.
Small-to-Medium Precision Mold Manufacturing
Performing high-precision, multi-tool automatic change milling and finishing of resin, artificial wood, and medium-intensity soft metals (like aluminum alloys and copper).
High-Demand Scientific Research Prototyping and Education
Suitable for professional facilities with strict requirements for automation level, precision, and noise.
■ Adapted Equipment
● CNC Nesting / Drilling Centers
Used for continuous, high-intensity, multi-tool automated production in the panel furniture industry.
● High-Rigidity CNC Milling Machines
Equipment used for prototyping small molds or precision parts, requiring the spindle to have high rigidity, high precision, and automatic tool change capability.
■ FAQ
Q: Why choose a water-cooled spindle?A: They have good heat dissipation, low noise, and high machining accuracy.
Q: What should be paid attention to in the daily maintenance of a water-cooled spindle?A: Use clean water (purified water), change the water regularly, and remember to use antifreeze in winter.
Q: How to choose the right power for a water-cooled spindle?A: 3.2kW and below: Suitable for engraving wood, plastic, and other materials.
5.5kW and above: Suitable for processing hard materials like metal and stone.
Q: Why does the spindle get hot?A: If the water isn't circulating (for example, if the pump is broken or the pipe is blocked), the spindle will overheat.
Q: What type of water is best for cooling?A: It's best to use purified or distilled water.
Q: How big should the water tank be for the cooling system?A: The bigger the water tank, the better the heat dissipation. A 10-20 liter tank is generally sufficient for a small spindle.
